Summary
The cross-section for the two-prong, proton antiproton, annihilation with formation of a pair of charged mesons (π± or K±) is calculated, starting from the Sakurai theory of strong interactions and introducing the vector mesons ρ, ϕ etc. in the intermediate state. The agreement with experiments can be obtained if convenient form factors are introduced in the interactions.
Riassunto
Si calcola la sezione d’urto di annichilazione di un protone e un antiprotone con formazione di una coppia di mesoni carichi (π± o K±). Il calcolo si fa partendo dalla teoria di Sakurai delle interazioni forti, introducendo nello stato intermedio i mesoni vettoriali ρ e ϕ. Si ottiene un accordo coi risultati sperimentali introducendo nell’interazione dei fattori di forma convenienti.
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Literatur
G. R. Lynch, R. E. Foulks, G. R. Vallfleisch, S. Limentani, I. B. Shafer, M. L. Stevenson, andN. Xuong: UCRL, 10633 (1963);O. Czyzewski, B. Escoubès, Y. Goldschmidt-Clermont, M. Guinea-Moorhead, T. Hofmokl, R. Lewisch, D. R. O. Morrison, M. Schneeberger andS. de Unamuno:Proc. Sienna Intern. Conf. on Elementary Particles (October 1963), p. 271;T. Ferbel, A. Firestone, J. Sandweiss, H. D. Taft, M. Gailloud, T. W. Morris, A. H. Bachman, P. Baumel andR. M. Lea:Phys Rev,137, B 1250 (1965);R. Delbourgo Y. C. Leung M. A. Rashid, andJ. Strathdee:International Centre for Theoretical Physics (IAEA) Trieste, n. IC/65/26.
G. Wataghin:Nuovo Cimento,30, 483 (1963);Annales Inst. Henri Poincaré, vol.1, n. 1 (1964), p. 47. See alsoV. Wataghin andH. Reiss:Nuovo Cimento,35, 1153 (1965).
J. Askin, T. Auerbach andR. Marshak:Phys. Rev.,79, 26 (1950).
W. Selove, V. Hagopian, H. Brody, A. Baker andE. Leboy:Phys. Rev. Lett.,9, 272 (1962);L. Bondar, K. Bongartz, M. Deutschmann, H. Weber, D. C. Colley, W. P. Dodd, J. Simmons, B. Tallini, J. Moebes, B. Nellen, G. Winter, E. Lohrmann, E. Raubold, G. Wolf, J. M. Brownlee, I. Butterworth, F. I. Campayne, M. Ibbotson, Y. S. Liu, N. N. Biswas, J. Derado, D. Lüers, G. Lütjens andM. Schmitz:Phys. Lett.,5, 153 (1964);W. R. Fraser, S. H. Patil andN.-H. Xuong:Phys. Rev. Lett.,12, 178 (1964);Y. Y. Lee, B. P. Roe, D. Sinclair andJ. C. Vander Velde:Phys. Rev. Lett.,12, 342 (1964).
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Jalla, E., Wataghin, G. Two-prong proton-antiproton annihilation with formation of a pair of charged mesons. Nuovo Cim 39, 635–640 (1965). https://doi.org/10.1007/BF02735828
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DOI: https://doi.org/10.1007/BF02735828